//
// Created by 123 on 2024/12/26.
//
#include "stdio.h"

typedef enum {
    RED,
    YELLOW,
    GREEN
} TrafficLight;

int main071(){
    TrafficLight light = RED;

    switch (light) {
        case RED:
            printf("stop\n");
            break;
        case YELLOW:
            printf("wait\n");
            break;
        case GREEN:
            printf("go\n");
            break;
        default:
            printf("unkown lignt");
    }


    return 0;
}